def get(self, key_name):
p = OSMPOI.get_by_key_name(key_name)
p.update_importance(p.importance + 1,
max_z=config.max_z_osm,
gt_key_name="osm")
taskqueue.add(url='/gt/admin/update_tiles', method='GET')
self.response.out.write('increased importance')
def get(self, key_name):
p = OSMPOI.get_by_key_name(key_name)
if p:
self.response.out.write("attr: ")
attrs = json.loads(p.attr)
for a in attrs:
self.response.out.write("<br/> ")
self.response.out.write(a)
self.response.out.write(": ")
self.response.out.write(attrs[a])
self.response.out.write("<br/>tags: ")
tags = json.loads(p.tags)
for t in tags:
self.response.out.write("<br/> ")
self.response.out.write(t)
self.response.out.write(": ")
self.response.out.write(tags[t])
else:
self.response.out.write("no such place")
self.response.out.write("<br/>importance: " + str(p.importance))
def get(self,key_name):
p = OSMPOI.get_by_key_name(key_name)
if p:
self.response.out.write("attr: ")
attrs = json.loads(p.attr)
for a in attrs:
self.response.out.write("<br/> ")
self.response.out.write(a)
self.response.out.write(": ")
self.response.out.write(attrs[a])
self.response.out.write("<br/>tags: ")
tags = json.loads(p.tags)
for t in tags:
self.response.out.write("<br/> ")
self.response.out.write(t)
self.response.out.write(": ")
self.response.out.write(tags[t])
else:
self.response.out.write("no such place");
self.response.out.write("<br/>importance: "+str(p.importance))
class DoUpdateOSM(webapp.RequestHandler):
"update 3x3 tiles around tile with zoom=17 where a point specified in ll is located"
def MarkOSMTileUpdated(self, x, y, z):
key_name = '%d,%d,%d' % (x, y, z)
t = OSMTile.get_by_key_name(key_name)
if not t:
t = OSMTile(key_name=key_name)
t.put()
def isOSMTileUpdated(self, x, y, z):
key_name = '%d,%d,%d' % (x, y, z)
t = OSMTile.get_by_key_name(key_name)
now = datetime.datetime.utcnow()
if t:
self.response.out.write("updated %d seconds ago\n" %
timedelta_to_seconds(now - t.time_fetched))
return True
else:
return False
def post(self):
ll = self.request.get('ll')
lat, lon = map(float, ll.split(','))
(x, y, z) = lat_lon_to_tile(lat, lon, config.max_z_osm)
if self.isOSMTileUpdated(x, y, z):
self.response.out.write("this tile is updated")
return
# OSM BBOX convention - left,bottom,right,top
# http://wiki.openstreetmap.org/wiki/Bounding_Box
top, left = tile_to_lat_lon(x - 1, y - 1, z)
bottom, right = tile_to_lat_lon(x + 2, y + 2, z)
url = "http://open.mapquestapi.com/xapi/api/0.6/map?bbox=%f,%f,%f,%f" % (
left, bottom, right, top)
# url = "http://api.openstreetmap.org/api/0.6/map?bbox=%f,%f,%f,%f" % (left, bottom, right, top)
self.response.out.write("updating tiles %s" % (url))
try:
data = urllib2.urlopen(url)
except urllib2.URLError, e:
self.response.out.write("error fetching url")
return
count_ways = 0
count_ways_closed = 0
count_ways_closed_named = 0
names_closed_ways = []
count_nodes_tagged = 0
count_nodes_named = 0
names_nodes = []
time_format = "%Y-%m-%dT%H:%M:%SZ"
nodes_dict = {}
for event, elem in etree.iterparse(data):
if elem.tag == 'node':
tags = elem.findall('tag')
id = elem.attrib['id']
nodes_dict[id] = elem
if tags:
if len(tags) == 1 and tags[0].attrib['k'] == 'created_by':
continue
name = ''
importance = 1.
value_str = elem.attrib['timestamp']
time_edited_in_osm = datetime.datetime.fromtimestamp(
time.mktime(time.strptime(value_str, time_format)))
attr = json.dumps(elem.attrib)
lat = elem.attrib['lat']
lon = elem.attrib['lon']
coord = "%s,%s" % (lat, lon)
tags_dict = {}
for t in tags:
tags_dict[t.attrib['k']] = t.attrib['v']
if t.attrib['k'] == 'name':
count_nodes_named += 1
names_nodes.append(t.attrib['v'])
name = t.attrib['v']
importance = 3.
p = OSMPOI.get_by_key_name(id)
if p:
p = p
else:
p = OSMPOI(key_name=id,
coord=coord,
attr=attr,
tags=json.dumps(tags_dict),
time_edited_in_osm=time_edited_in_osm,
name=name,
importance=importance)
p.put()
self.response.out.write('\n%s' % elem.attrib['id'])
self.response.out.write('\n%s' % str(time_edited_in_osm))
count_nodes_tagged += 1
if elem.tag == 'way':
count_ways += 1
nds = elem.findall('nd')
# if closed way
if nds[0].attrib['ref'] == nds[-1].attrib['ref']:
count_ways_closed += 1
tags = elem.findall('tag')
if tags:
if len(tags
) == 1 and tags[0].attrib['k'] == 'created_by':
continue
id = 'w' + elem.attrib['id']
name = ''
importance = 2.
value_str = elem.attrib['timestamp']
time_edited_in_osm = datetime.datetime.fromtimestamp(
time.mktime(time.strptime(value_str, time_format)))
attr = json.dumps(elem.attrib)
tags_dict = {}
for t in tags:
tags_dict[t.attrib['k']] = t.attrib['v']
if t.attrib['k'] == 'name':
count_ways_closed_named += 1
names_closed_ways.append(t.attrib['v'])
name = t.attrib['v']
importance = 4.
# find coordinates
lat = 0.
lon = 0.
# do not count last node because it repeats the first
for n in nds[:-1]:
node_id = n.attrib['ref']
node = nodes_dict[node_id]
lat += float(node.attrib['lat'])
lon += float(node.attrib['lon'])
l = len(nds) - 1.
lat = lat / l
lon = lon / l
coord = "%f,%f" % (lat, lon)
p = OSMPOI.get_by_key_name(id)
if p:
p = p
else:
p = OSMPOI(key_name=id,
coord=coord,
attr=attr,
tags=json.dumps(tags_dict),
time_edited_in_osm=time_edited_in_osm,
name=name,
importance=importance)
p.put()
# mark OSMTiles as updated
for xx in range(x - 1, x + 2):
for yy in range(y - 1, y + 2):
self.MarkOSMTileUpdated(xx, yy, z)
taskqueue.add(url='/gt/admin/add_points', method='GET')
self.response.out.write('\nways: %d' % count_ways)
self.response.out.write('\nclosed ways: %d' % count_ways_closed)
self.response.out.write('\nnamed closed ways: %d' %
count_ways_closed_named)
self.response.out.write('\ntagged nodes: %d' % count_nodes_tagged)
self.response.out.write('\nnamed nodes: %d' % count_nodes_named)
def get(self,key_name):
p = OSMPOI.get_by_key_name(key_name)
if p.importance > 0:
p.update_importance(p.importance-1, max_z=config.max_z_osm, gt_key_name="osm")
taskqueue.add(url='/gt/admin/update_tiles', method='GET')
self.response.out.write('decreased importance');
